Experiments On Postdetection Diversity For Narrowband Digital Fm Mobile Radio

F. Adachi, K. Ohno

Research output: Contribution to journalArticlepeer-review


Postdetection diversity, in which the demodulator outputs are weighted in proportion to the th power of each demodulator input signal envelope when they are added, is described for GMSK signal reception using a frequency demodulator and a one-bit decision feedback equaliser. Experiments on a 16 kbit/s GMSK with a premodulation filter bandwidth-bit duration product of BbT = 0.25, show that using v = 2 provides a diversity gain about 1 ~ 1.5 dB larger than selection combining, at an average bit error rate of 10-2 in a Rayleigh fading environment.

Original languageEnglish
Pages (from-to)1491-1493
Number of pages3
JournalElectronics Letters
Issue number24
Publication statusPublished - 1988
Externally publishedYes


  • Mobile radio systems
  • Modulation
  • Radio links
  • Radiowave propagation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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